first commit

src/db/index.ts

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+import { JSONFilePreset,  } from 'lowdb/node'
+import { Low  } from 'lowdb'
+
+// 定义数据结构：setting 是对象，不是数组
+type Data = {
+  setting: {
+    count: string | number;
+    time: string;
+    [key: string]: any;
+  };
+};
+
+class DbJson {
+    private defaultData: Data = { 
+        setting: {
+            count: 0,
+            time: ''
+        }
+    }
+
+    db!: Low<Data>;
+
+    constructor () {
+        this.init();
+    }
+
+    async init () {
+        this.db = await JSONFilePreset<Data>('db.json', this.defaultData)
+    }
+
+    async set(params: Data['setting']) {
+        this.db.data.setting = params
+        await this.db.write()
+    }
+
+    // 读取当前保存的 setting
+    async get() {
+        return this.db.data.setting;
+    }
+}
+
+export default new DbJson

src/index.ts

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+import puppeteer from 'puppeteer-core';
+import config from "./config";
+import db from "./db/index";
+import mailer from "./utils/mailer";
+import schedule from 'node-schedule';
+
+// 把你的逻辑封装成函数
+async function startTask() {
+    console.log('');
+    console.log('====================================');
+    console.log('⏰ 定时任务开始执行：', new Date().toLocaleString());
+    console.log('====================================');
+    console.log('');
+
+    try {
+        // 1. 启动无头浏览器
+        const browser = await puppeteer.launch(config.launchConfig);
+        const page = await browser.newPage();
+        await page.setExtraHTTPHeaders(config.httpHeaders);
+
+        // 访问页面
+        await page.goto(config.page, {
+            waitUntil: 'networkidle2',
+            timeout: <number>config.pageTimeOut
+        });
+
+        await page.setViewport({ width: 1080, height: 1024 });
+
+        // 抓取数量
+        const number = await page.$eval(
+            '#semiTabpost h2 span:last-child',
+            el => el.textContent.trim()
+        );
+        console.log('1 抓取到主播最新作品数：', number);
+
+        // 获取旧值
+        const { count } = await db.get();
+        console.log('2 数据库里的旧值：', count);
+
+        // 判断是否更新
+        if (String(count) !== String(number)) {
+            console.log('✅ 主播更新作品了');
+            await mailer.send();
+            await db.set({
+                count: number,
+                time: new Date().toLocaleString()
+            });
+            console.log('✅ 已更新到数据库');
+        } else {
+            console.log('❌ 主播没有更新作品');
+        }
+
+        await browser.close();
+        console.log('✅ 本次任务执行完成\n');
+
+    } catch (err) {
+        console.error('❌ 任务执行出错：', err);
+    }
+}
+
+
+console.log('✅ 程序已启动，执行任务，定时规则：', config.cron);
+
+schedule.scheduleJob(config.cron, async () => {
+    await startTask();
+});
+
+// startTask()

src/utils/mailer.ts

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+import nodemailer from 'nodemailer';
+import config from '../config';
+
+
+class Mailer {
+    transporter: any;
+
+    constructor() {
+        this.transporter = nodemailer.createTransport(config.mailer);
+        this.verify();
+    }
+
+
+    async verify() {
+        try {
+            await this.transporter.verify();
+            console.log("✅ 邮件服务已经初始化成功...");
+        } catch (err) {
+            console.error("❌ 邮件服务初始化失败: ", err);
+        }
+    }
+
+    async send() {
+        console.log('准备发送邮件通知！');
+        try {
+            const result = await this.transporter.sendMail({
+                from: '2271608011@qq.com', // sender address
+                to: "2271608011@qq.com", // list of recipients
+                subject: "小🐰碎碎念 - 更新了！", // subject line
+                html: `您关注的博主，更新啦！<a href="${config.page}">抖音主页</a>`
+            });
+
+            console.log('✅ 邮件发送成功:', result);
+        } catch (err) {
+            console.error('❌ 邮件发送失败:', err);
+            throw err;
+        }
+    }
+}
+
+export default new Mailer